package hflyeer.gitee.com.gloal;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/*
* 字符集过滤器,默认为utf8
*/
public class CharacterFilter implements Filter {
    private String encoding = "UTF-8";
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) resp;
        request.setCharacterEncoding(encoding);
        response.setCharacterEncoding(encoding);
        chain.doFilter(request, response);
    }

    public void init(FilterConfig config) throws ServletException {
        String encoding = config.getInitParameter("encoding");
        if (encoding!=null){
            this.encoding = encoding;
        }
    }

}
